Sensorisk grundlag for talemotorisk læring
Hjernestrukturer i talemotorisk hukommelseskonsolidering
These studies test the hypothesis that sensory areas of the brain participate in the consolidation of speech motor memory by using transcranial magnetic stimulation to suppress activity in somatosensory and auditory cortex following adaptation in order to block retention of learning.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
Subjects will train using altered auditory feedback. Immediately following adaptation, continuous theta burst magnetic stimulation (cTBS) will be applied to either auditory or somatosensory or motor cortex with the goal of blocking consolidation of motor memory. The logic of applying cTBS to both sensory areas is to test the hypothesis that both areas are involved in motor memory consolidation. Subjects leave the laboratory following cTBS and return 24 hours later to assess retention of learning. Learning is assessed as percentage change in speech sounds (first formant frequency) relative to baseline.
Undersøgelsestype
Tilmelding (Faktiske)
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
-
-
Quebec
-
Montreal, Quebec, Canada, H3A1G1
- McGill University
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- right handed adults
- no known physical or neurological abnormalities
Exclusion Criteria:
- patients with:
- cardiac pacemaker
- surgical clips or values on the heart
- implants
- metal or metallic fragments in any part of the body
- pregnancy
- claustrophobia
- a personal or family history of epilepsy
- currently taking antipsychotic drugs
- currently taking antidepressant drugs
- currently taking antianxiety drugs
- history of concussion.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Grundvidenskab
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Eksperimentel: Adaptation to Altered Auditory Feedback + cTBS to S1
Adaptation to Altered Auditory Feedback + cTBS to S1 |
Sensorimotor adaptation in speech continuous theta-burst stimulation |
|
Eksperimentel: Adaptation to Altered Auditory Feedback + cTBS to A1
Adaptation to Altered Auditory Feedback + cTBS to A1 |
Sensorimotor adaptation in speech continuous theta-burst stimulation |
|
Eksperimentel: Adaptation to Altered Auditory Feedback + cTBS to M1
Adaptation to Altered Auditory Feedback + cTBS to M1 |
Sensorimotor adaptation in speech continuous theta-burst stimulation |
|
Eksperimentel: Adaptation to Altered Auditory Feedback (Control)
Adaptation to Altered Auditory Feedback (Control) |
Sensorimotor adaptation in speech |
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Mean Percent Change in F1 to Assess Motor Learning
Tidsramme: Baseline and end of learning (30 minute session)
|
Learning is assessed as change in speech sounds (speech formant frequencies, F1) relative to baseline. The first formant frequency (F1) is the lowest resonant frequency of the vocal tract. Lower F1 Numbers Indicate a high or "closed" tongue position). Higher F1 Numbers indicate a low or "open" jaw position. Absolute numbers vary depending on a person's age and vocal tract size. Percent change calculated as ((F1 end of learning value minus F1 baseline value)/ F1 baseline value)*100). |
Baseline and end of learning (30 minute session)
|
|
Mean Percent Change in F1 to Assess Retention of Learning
Tidsramme: Baseline and 24 hours after learning (re-test lasts 30 minutes)
|
First formant frequency change (F1) relative to baseline is the dependent measure of retention. Percent change calculated as ((F1 end of retention value minus F1 baseline value)/ F1 baseline value)*100). |
Baseline and 24 hours after learning (re-test lasts 30 minutes)
|
Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: David Ostry, Haskins Laboratories
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 2000025475
- R01DC017439 (U.S. NIH-bevilling/kontrakt)
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
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